Chapter 24, Problem 24.20P

Interpretation Introduction

(a)

Interpretation:

The Fischer projection for the structure of galacturonic acid is to be drawn.

Concept introduction:

Carbohydrates are a class of organic compounds. They can be present in the form of open chains or rings they are usually an aldehyde or ketone with additional hydroxyl groups. They have the general molecular formula, ${\left({\text{CH}}_{\text{2}}\text{O}\right)}_{\text{n}}$.

The six-membered ring form of carbohydrates is termed as pyranose. The five-membered ring form of carbohydrates is termed as furanose.

Interpretation Introduction

(b)

Interpretation:

The Fischer projection for the structure of ribitol is to be stated.

Concept introduction:

Carbohydrates are a class of organic compounds. They can be present in the form of open chains or rings.

They are usually an aldehyde or ketone with additional hydroxyl groups. They have the general molecular formula, ${\left({\text{CH}}_{\text{2}}\text{O}\right)}_{\text{n}}$.

The six membered ring form of carbohydrates is termed as pyranose. This ring contains $5$ carbon atoms and $1$ an oxygen atom.